Static Strike of Gathering Lightning Bugs/Wording Issues

Hey, I've been messing with this skill for a few days and while it is generally cool and good there are a few nuances that seem really strange so I wanted to make a post and hopefully either get them fixed or get clarification.

Gathering Lightning is referred to as a buff in the tooltip and when hovering the gem, but Runegraft of the Warp doesn't cause the stacks to expire slower. Obviously I'm sad that I spent some in game money on this but I'm more confused why the interaction is this way when the wording is how it is. Is this intended behavior or a bug?

The other thing seems a lot less like a bug but the wording makes it unclear. When using Multistrike you'll only get 1 stack of Gathering Lightning per 3 attacks. This seems in line with some other skills like Infernal Blow, but the wording on Static Strike of Gathering Lightning specifies "on hit" which makes it seem like Multistrike would work well. I feel like this one is probably intended, but if that's the case then the wording could be more clear.

I really like this skill overall, but after a few days of tinkering with it and using a bunch of different setups both of these issues keep bothering me. Hoping the right people see this!